Related Experiment Video
Updated: Mar 21, 2026

Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors
Published on: January 31, 2025
Efficiency of the Switching Process in Organic Electrochemical Transistors
Philipp C Hütter1, Alexander Fian1, Karl Gatterer2
1MATERIALS - Institute for Surface Technologies and Photonics, JOANNEUM RESEARCH Forschungsgesellschaft mbH, Franz-Pichler-Straße 30, 8160 Weiz, Austria.
Abstract:
Entirely screen printed organic electrochemical transistors (OECTs) based on poly(3,4-ethylenedioxithiophene) poly(styrenesulfonate) (
Pedot:
PSS) and a polymer electrolyte are investigated in view of a correlation between the electrical charge consumed during switching and the volume of
Pedot:
PSS in the transistor channel. An understanding of the relation between charge consumption and the amount of electrochemically active PEDOT is essential for the design of high performance transistors and for providing a deeper insight into the fundamentals of the electrochemical switching process in OECTs. It turned out that a precise control of the width of the
Pedot:
PSS source-drain line is imperative for maximizing both the on-current and the on/off current ratio of lateral OECTs.
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